Search results

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    Broken Crankshaft Count?

    Gale Banks says his fluid damper will prevent this and has a YouTube video on it. I think it is a design flaw that only a redesigned crank will fix.
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    LMM Budget Build

    What did you end up with for piston ring gaps ? Did you file fit the rings ?
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    LB7: lb7 bolts

    Yes, to all 3 at a minimum. It is also a good idea to replace the balancer bolt, flywheel bolts and cam gear bolt. They are all TTY.
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    LMM: Short Block Assembly

    I'm using new stock TTY main bolts from Merchant and I am confused on what to do for lube. I have read that I should not use additional lube because the bolts come with a pre-applied molybdenum disulfide coating. I have also been told to use a light coating of oil by 2 different engine builders...
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    CP4 Failure... WTH

    Wow, I am truly amazed. Good move GM.
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    DHD engine tear down of the runaway

    What made the engine finally shut down ?
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    LMM: Short Block Assembly

    I checked everything with a bore gauge and only the top of the bore was affect by the torque plate around the bolt holes. Being I don’t have one, it looks like I can just push the ring farther down in the bore (2 to 3 inches from the top) and file fit the gap at that location.
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    LMM: Short Block Assembly

    So no one has advice on a crank gear install ?
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    LMM: Short Block Assembly

    Getting ready to install my new crank gear and I was told to heat it up in a oven for 30 minutes but I can't remember what the temperature should be ? Sent from my iPad using Tapatalk
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    LMM: Short Block Assembly

    Just got off the phone with Mahle and they tell me 42160 supersedes 41909 and 4075MDK-D supersedes the 42160. The 4075MDK-D is the latest from just a couple months ago.
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    LMM: Short Block Assembly

    Will Mahle really give me credit on just the ring set from the piston kit ? Wish I could tell which ones they were 4075MDK-D doesn’t come up as a good part number.
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    LMM: Short Block Assembly

    Well the rings say they are not file to fit and after measuring the pistons, the piston to wall clearance is right on spec at 0.002
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    LMM: Short Block Assembly

    Attempting to put my short block together and ran into sone concerns. My new Mahle performance cast piston rings have a ring gap of 0.015 and Mahle says it should be 0.020 minimum . GM says it should be 0.012 - 0.018. Comparing the rings they look just like the factory GM rings. My bore is 4.075...
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    LMM: Idaho Rob? I am told you hold a solution....

    Let me put you at ease. I also have an 08 LMM with 140,000 on the clock. It busted a piston and now I am rebuilding the engine. Just got a call today on my injector test results. Turns out I have 1 bad injector and the CP3 needs a part as well. After buying a set of injectors I will be in for...
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    LML Callies Durastar Crankshaft Issues??

    That’s not very many, makes me wonder, is it really better than a stock crank? I wish someone would post results with some mileage on their engine. At least 100,000 miles.
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    LML Callies Durastar Crankshaft Issues??

    It says .02% which is .0002
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    LML Callies Durastar Crankshaft Issues??

    Math says 1 for every 5,000 sold. [emoji848]
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    LML Callies Durastar Crankshaft Issues??

    A dial indicator is not gonna tell the whole story. It is my understanding the crank was not hardened in the thrust bearing area. My crank was sent back to Callies and I am also waiting on answers.
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    LML Callies Durastar Crankshaft Issues??

    You could also call Callie’s with the numbers from the crank. If it happens to be a batch problem they would know if yours is a potential problem.
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    LML Callies Durastar Crankshaft Issues??

    Let’s look from the other direction. Does anyone out there have a Durastar crankshaft with 100,000 miles on it ?